The focus of this presentation is on the initial experiences with the development of Tizen applications as team projects in the CSC 484 "User-Centered Design and Development" course at Cal Poly, San Luis Obispo. Several teams of about five students worked for close to ten weeks on applications utilizing HTML5 and CSS as their primary implementation languages. Two teams developed games, one an ephemeral instant messaging app, and another one a hybrid voice and text note-taking app. While the students appreciated the relatively benign learning curve for HTML5 and CSS, of course they also encountered difficulties. Most of the teams were able to work around those, but one team decided to switch to Android as their main platform due to difficulties with APIs they relied on in their app. Some of this work is continuing in the Spring 2014 quarter, when we also plan to use Tizen platform as the basis for a lab assignment in the CPE/CSC 453 Operating Systems course.